I've recently bought D-LINK 2640
need to install new firmware, followed the process via the recovery mode
It is not succesfull
tried all options
curl -v -i -F "firmware=@openwrt-21.02.0-ramips-mt7621-dlink_dir-2640-a1-squashfs-factory.bin" 192.168.0.1
curl -v -i -F "firmware=@openwrt-ramips-mt7621-dlink_dir-2640-a1-squashfs-factory.bin" 192.168.0.1
This hardware comes with port 80 closed. anyone knows how to force a port to be opened
When rebooting, it showed factory firmware again